<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true" :model="filters">
        <el-form-item>
          <el-input v-model="filters.keyword" placeholder="关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="search">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">

      <!--这是elementui提供的选择框，此选择框可以多选-->
      <el-table-column type="selection" width="55">
      </el-table-column>

      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="name" label="部门名称" width="120" >
      </el-table-column>
      <el-table-column prop="sn" label="部门编号" width="100" >
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100" sortable>
        <!--scope：获取这一行的所有字段数据-->
        <template scope="scope">
          <span style="color: green" v-if="scope.row.state === 1">开启</span>
          <span style="color: red" v-else-if="scope.row.state === 0">关闭</span>
          <span v-else>未知</span>
        </template>
      </el-table-column>
      <el-table-column prop="manager.username" label="负责人" width="120" >
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" min-width="180" >
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
<!--          自定义权限绑定删除按钮-->
          <el-button type="danger" size="small" v-perm="'department:deleteRemove'" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <!--
        disabled：是否不可点击
          true：不可点击
          false：可点击
      -->
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange" :current-page="currentPage" :page-size="pageSize" :total="total" style="float:right;">
      </el-pagination>
    </el-col>

    <!--编辑界面
        v-model：在1.X的时候是控制此标签是否展示，但是2.X之后是双向绑定
        :rules="editFormRules"：表单校验规则绑定那个规则对象
          prop="name"：此字段运用表单校验规则中的那个规则
    -->
    <el-dialog :title="title" :visible.sync="editFormVisible" :close-on-click-modal="false">
      <el-form :model="editForm" label-width="80px" :rules="editFormRules" ref="editForm">
        <el-form-item label="部门名称" prop="name">
          <el-input v-model="editForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="部门编号" prop="sn">
          <el-input v-model="editForm.sn" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="是否启用">
          <el-radio-group v-model="editForm.state">
            <el-radio class="radio" :label="1">启用</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="部门经理">
          <el-select v-model="editForm.manager" value-key="id"  placeholder="请选择">
<!--
                item 别名,  cities是员工查询的数组
                :key 绑定一个唯一字段
                :labeel 用户选择后下拉框展示的数据

 -->
            <el-option
                v-for="item in cities"
                :key="item.id"
                :label="item.username"
                :value="item">
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="上级部门">
          <!--
           el-cascader：级联选择器框
           options：级联的数据，指向模型层的options字段
         -->
          <span class="demonstration"></span>
          <el-cascader
              v-model="editForm.parent"
              :options="options"
              :props="{ checkStrictly: true, value:'id', label:'name' }"
              clearable></el-cascader>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="editFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="editSubmit" :loading="editLoading">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>

<script>
	import util from '../../common/js/util'
	//import NProgress from 'nprogress'
	import { getDepartmentListPage, removeDepartment, batchRemoveDepartment, editDepartment, addDepartment } from '../../api/api';

	export default {
		data() {
			return {

        options: [],
        filters: {
          keyword: ''
				},
				departments: [],
				total: 0,
        currentPage: 1,
 				pageSize: 5,
				listLoading: false,
				sels: [],//列表选中列
        title:"",
				editFormVisible: false,//编辑界面是否显示
				editLoading: false,
        // 表单校验规则
        editFormRules: {
          name: [
            // 为空校验
            { required: true, message: '请输入部门名称', trigger: 'blur' }
          ],
          sn: [
            // 为空校验
            { required: true, message: '请输入部门编号', trigger: 'blur' }
          ]
        },
				//编辑界面数据
        editForm: {
          id:null,
          sn:"",
          name:"",
          state:0,
          manager:{},
          parent:{}
        },
        cities: []
      }
    },
		methods: {
      // 获取部门树
      getDepartmentTree(){
        this.$http.get("/department/tree")
            .then(result=>{
              this.options = result.data;
            })
      },
      // 获取员工表数据
      getEmployees(){
        this.$http.get("/employee")
            .then(result=>{
              this.cities = result.data; // 因为没有封装,所有data就是所有数据,封装给cities数组
            })
      },
      search(){
        this.currentPage = 1;
        this.getDepartments();
      },
      handleCurrentChange(val) {
        this.currentPage  = val;
        this.getDepartments();
      },
      //获取部门列表
      getDepartments() {
        let para = {
          currentPage: this.currentPage,
          pageSize: this.pageSize,
          keyword: this.filters.keyword
        };
        this.listLoading = true;
        this.$http.post("/department", para)
            .then(result => {
              // 关闭忙等
              this.listLoading = false;
              // 获表中的数据
              this.departments = result.data.rows;
              this.total = result.data.total;
            }) .catch(result=>{
           this.$message({
            message: '系统繁忙，请重试！',
            type: 'error'
          });
        })
      },
			//删除
			handleDel: function (index, row) {
				this.$confirm('确认删除该记录吗?', '提示', {
					type: 'warning'
				}).then(() => {
					this.listLoading = true;
          this.$http.delete("/department/"+row.id)
              .then(result=>{
                // 关闭忙等
                this.listLoading = false;
                if(result.data.success){
                  this.$message({
                    message: result.data.message,
                    type: 'success'
                  });
                }else { // 避免删除成功后还是报错
                  this.$message({
                    message: result.data.message,
                    type: 'error'
                  });
                }
                // 初始化
                this.currentPage = 1;
                // 失败或者成功都要查询
                this.getDepartments();
              })
              .catch(result=>{
                this.$message({
                  message: '系统繁忙，请重试！',
                  type: 'error'
                });
              })
        }).catch(() => {
          // 取消进catch
        });
      },
      //显示编辑界面
      handleEdit: function (index, row) {
        this.title = "编辑";
        // 弹出编辑框
        this.editFormVisible = true;

        // 克隆对象到我们模型层的对象中
        this.editForm = Object.assign({}, row);

        let arr = this.editForm.dirPath.split("/");
        console.log(arr)
        let echoArr = [];
        for(var i = 1;i < arr.length - 1;i++){
          echoArr.push(parseInt(arr[i]));
        }
        this.editForm.parent = echoArr;
      },
      //显示新增界面
      handleAdd: function () {
        this.title = "新增";
        this.editFormVisible = true;
        this.editForm = {
          id:null,
          sn:"",
          name:"",
          state:0,
          manager:{},
          parent:{}
        };
      },
      //编辑
			editSubmit: function () {
				this.$refs.editForm.validate((valid) => {
					if (valid) {
						this.$confirm('确认提交吗？', '提示', {}).then(() => {
							this.editLoading = true;
              // 2.从模的editForm对象中克隆一个新对象
              let para = Object.assign({}, this.editForm);

              if (para.parent){
                // 通过下标获取到用户选择的上级部门的最后一条数据,封装给对象中的parent字段
                para.parent = {id:para.parent[para.parent.length - 1]}
              }
              this.$http.put("/department", para)
                  .then(result => {
                    // 关闭忙等
                    this.editLoading = false;
                    this.editFormVisible = false;
                    if(result.data.success){ // 新增/修改成功
                      this.$message({
                        message: result.data.message,
                        type: 'success'
                      });
                    }else { // 不一定新增/修改成功，我们也不知道新增/修改成功没有
                      this.$message({
                        message: result.data.message,
                        type: 'error'
                      });
                    }
                    // 修改页码
                    this.currentPage = 1;
                    // 重新查询.
                    this.getDepartments();
                  })
                  .catch(result=>{
                    this.editLoading = false;
                    this.$message({
                      message: '系统繁忙，请重试！',
                      type: 'error'
                    });
                  })
            });
          }
        });
      },
      selsChange: function (sels) {
        this.sels = sels;
      },
			//批量删除
			batchRemove: function () {
        console.log(this.sels)
				var ids = this.sels.map(item => item.id);
				this.$confirm('确认删除选中记录吗？', '提示', {
					type: 'warning'
				}).then(() => {
					this.listLoading = true;
          this.$http.patch("/department",ids)
              .then(result=>{
                // 关闭忙等
                this.listLoading = false;
                if(result.data.success){
                  this.$message({
                    message: result.data.message,
                    type: 'success'
                  });
                }else { // 避免删除成功后还是报错
                  this.$message({
                    message: result.data.message,
                    type: 'error'
                  });
                }
                // 初始化
                this.currentPage = 1;
                // 失败或者成功都要查询
                this.getDepartments();
              })
              .catch(result=>{
                this.$message({
                  message: '系统繁忙，请重试！',
                  type: 'error'
                });
              })
        }).catch(() => {

				});
			}
		},
		mounted() {
			this.getDepartments();
      this.getEmployees();
      this.getDepartmentTree();
		}
	}

</script>

<style scoped>

</style>